A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rare earth oxide doped modified zinc silicate ceramic for microwave device and preparation method of rare earth oxide doped modified zinc silicate ceramic
The invention provides rare earth oxide doped modified zinc silicate ceramic for microwave devices and a preparation method thereof, relates to the field of information function ceramic materials, and can be widely applied to the fields of microwave adjustable devices, especially filters and the like. The ceramic material comprises Zn < 2-x-y > RySiO4-x which is composed of a main material Zn < 2-x > SiO4-x and a modified additive RO rare earth oxide (RO is selected from La2O3, CeO2, Pr6O11, Nd2O3, Sm2O3, Eu2O3, Gd2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3 and Lu2O3), wherein x is larger than or equal to 0 and smaller than or equal to 0.4, and y is larger than or equal to 0 and smaller than or equal to 2. The preparation method comprises the following steps: mixing ZnO, SiO2 and RO according to a certain ratio, and carrying out ball milling, drying, sieving, pre-sintering, secondary ball milling, granulation, sieving, blank making and sintering to obtain the zinc silicate-based microwave dielectric ceramic. The Zn2-x-yRySiO4-x ceramic with low loss and low dielectric constant prepared by the invention solves the technical problems of high sintering temperature and narrow sintering range of zinc silicate-based microwave dielectric ceramic, resulting in a ZnO second phase, more pores of a sintered product, serious reduction of quality factor and the like; the technical effects that the zinc silicate-based microwave dielectric ceramic can be sintered into ceramic within the temperature range of 1200-1325 DEG C and is compact, and the dielectric constant epsilon is adjustable and ranges from 5 to 7.9 are achieved.
本发明提供一种微波器件用的稀土氧化物掺杂改性硅酸锌陶瓷及其制备方法，涉及信息功能陶瓷材料领域，可广泛应用于微波可调器件尤其是滤波器等领域。该陶瓷材料包括主材Zn2‑xSiO4‑x与改性添加物RO稀土氧化物（RO选自La2O3，CeO2，Pr6O11，Nd2O3，Sm2O3，Eu2O3，Gd2O3，Dy2O3，Ho2O3，Er2O3，Tm2O3，Yb2O3，Lu2O3）组成的Zn2‑x‑yRySiO4‑x，其中0≤x≤0.4，0≤y≤2。步骤如下：将ZnO、SiO2、RO按照一定比例混合，经球磨、烘干、过筛、预烧、二次球磨、造粒、过筛、制坯、烧结，得到硅酸锌基微波介质陶瓷。本发明制备得到的低损耗、低介电常数的Zn2‑x‑yRySiO4‑x陶瓷解决了硅酸锌基微波介质陶瓷烧结温度高及烧结范围窄及带来的ZnO第二相、烧结产品气孔多、品质因数严重下降等技术问题，达到了使硅酸锌基微波介质陶瓷可在1200～1325℃的温度范围内烧结成瓷且致密，介电常数ε可调，其值介于5～7.9之间的技术效果。
Rare earth oxide doped modified zinc silicate ceramic for microwave device and preparation method of rare earth oxide doped modified zinc silicate ceramic
The invention provides rare earth oxide doped modified zinc silicate ceramic for microwave devices and a preparation method thereof, relates to the field of information function ceramic materials, and can be widely applied to the fields of microwave adjustable devices, especially filters and the like. The ceramic material comprises Zn < 2-x-y > RySiO4-x which is composed of a main material Zn < 2-x > SiO4-x and a modified additive RO rare earth oxide (RO is selected from La2O3, CeO2, Pr6O11, Nd2O3, Sm2O3, Eu2O3, Gd2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3 and Lu2O3), wherein x is larger than or equal to 0 and smaller than or equal to 0.4, and y is larger than or equal to 0 and smaller than or equal to 2. The preparation method comprises the following steps: mixing ZnO, SiO2 and RO according to a certain ratio, and carrying out ball milling, drying, sieving, pre-sintering, secondary ball milling, granulation, sieving, blank making and sintering to obtain the zinc silicate-based microwave dielectric ceramic. The Zn2-x-yRySiO4-x ceramic with low loss and low dielectric constant prepared by the invention solves the technical problems of high sintering temperature and narrow sintering range of zinc silicate-based microwave dielectric ceramic, resulting in a ZnO second phase, more pores of a sintered product, serious reduction of quality factor and the like; the technical effects that the zinc silicate-based microwave dielectric ceramic can be sintered into ceramic within the temperature range of 1200-1325 DEG C and is compact, and the dielectric constant epsilon is adjustable and ranges from 5 to 7.9 are achieved.
本发明提供一种微波器件用的稀土氧化物掺杂改性硅酸锌陶瓷及其制备方法，涉及信息功能陶瓷材料领域，可广泛应用于微波可调器件尤其是滤波器等领域。该陶瓷材料包括主材Zn2‑xSiO4‑x与改性添加物RO稀土氧化物（RO选自La2O3，CeO2，Pr6O11，Nd2O3，Sm2O3，Eu2O3，Gd2O3，Dy2O3，Ho2O3，Er2O3，Tm2O3，Yb2O3，Lu2O3）组成的Zn2‑x‑yRySiO4‑x，其中0≤x≤0.4，0≤y≤2。步骤如下：将ZnO、SiO2、RO按照一定比例混合，经球磨、烘干、过筛、预烧、二次球磨、造粒、过筛、制坯、烧结，得到硅酸锌基微波介质陶瓷。本发明制备得到的低损耗、低介电常数的Zn2‑x‑yRySiO4‑x陶瓷解决了硅酸锌基微波介质陶瓷烧结温度高及烧结范围窄及带来的ZnO第二相、烧结产品气孔多、品质因数严重下降等技术问题，达到了使硅酸锌基微波介质陶瓷可在1200～1325℃的温度范围内烧结成瓷且致密，介电常数ε可调，其值介于5～7.9之间的技术效果。
Rare earth oxide doped modified zinc silicate ceramic for microwave device and preparation method of rare earth oxide doped modified zinc silicate ceramic
一种微波器件用的稀土氧化物掺杂改性硅酸锌陶瓷及其制备方法
JIANG TING (author) / WEN WEI (author) / YANG WEIZE (author) / MA XINGYUN (author) / LU YAOFU (author)
2024-05-28
Patent
Electronic Resource
Chinese
Rare earth doped zinc oxide voltage-sensitive ceramic, preparation method and application thereof
| European Patent Office | 2022
High-throughput preparation method of high-entropy rare earth silicate ceramic
| European Patent Office | 2024
Rare earth doped zinc-gallium-aluminum oxide powder and preparation method thereof
| European Patent Office | 2021
Zirconium oxide ceramic doped with rare earth/transition metal oxide and preparation method thereof
| European Patent Office | 2021